CN215467062U - Drum-shaped gear coupling shaft bracket - Google Patents

Abstract

The application discloses a drum-shaped tooth connecting shaft bracket, which relates to the technical field of connecting shaft brackets of rod and wire rolling mills, wherein two upper connecting shaft sliding blocks and two lower connecting shaft sliding blocks are arranged on two sides of the upper part in a bracket body; trunnions at two sides of the shaft end of the universal spindle are respectively arranged in the two upper spindle sliding blocks and the two lower spindle sliding blocks; fixed pulleys are symmetrically arranged on the outer sides of two ends of the upper part of the bracket body, a plate type chain is arranged on the fixed pulleys, circular grooves transversely matched with the plate type chain are formed in the peripheries of the fixed pulleys, and grooves longitudinally matched with the plate type chain are formed in the circular grooves; one end of the plate-type chain is connected with one end of an upper connecting shaft sliding block in the bracket body, the other end of the plate-type chain is connected with a pre-tightening shock absorption device, and the pre-tightening shock absorption device is connected with a protrusion extending to the outer side of the lower connecting shaft sliding block. This application avoids external impact vibrations to lead to the spiale spring, has guaranteed the accurate adjustment of spiale opening degree, has improved steady, the security of spiale bracket simultaneously.

Description

Drum-shaped gear coupling shaft bracket

Technical Field

The application relates to the technical field of connecting shaft brackets of rod and wire rolling mills, in particular to a drum-shaped tooth connecting shaft bracket.

Background

With the development of scientific technology and metallurgical industry, the short stress rolling mill is widely applied to bar wire and section bar workshops due to the advantages of good precision, light equipment, simple operation and the like, and the transmission system of the rolling mill is that the power of a motor is transmitted to a roller through a universal shaft after passing through a speed reducer. The spindle bracket is used as an auxiliary mechanism of the rolling mill and mainly used for supporting the weight of the universal spindle and reducing the impact load at the joint of a spindle sleeve and a roller of the universal spindle; the universal spindle is guaranteed to be under different opening degrees, the torque of the motor can be stably transmitted to the roller, and the phenomenon that the roller fluctuates due to unstable spindles and the accuracy of products is finally affected is avoided.

At present, in a short stress rolling mill train, universal spindles are generally divided into drum-shaped tooth universal spindles and cross universal spindles according to different structures, the structural forms of corresponding spindle brackets are different, the drum-shaped tooth universal spindles are commonly used in a finishing rolling area of the train due to the characteristics of stable transmission, easy alignment during roll replacement, simple disassembly and assembly and the like, and the spindle brackets used in the pair are drum-shaped tooth spindle brackets.

However, a common drum-shaped gear coupling bracket is a coupling bracket with a link structure (as shown in fig. 6), the coupling bracket with the link structure is connected by a plurality of links, a plurality of links are connected at a position close to an upper connecting shaft slider and a position close to a lower connecting shaft slider, a screw rod is arranged between the plurality of integrally connected links, a nut is arranged in the screw rod, the length of the screw rod is adjusted by adjusting the nut, and when the length of the screw rod changes, the screw rod is driven to move, so that the upper connecting shaft slider and the lower connecting shaft slider move up and down.

Disclosure of Invention

The embodiment of the application provides a drum-shaped tooth connecting shaft bracket, and solves the problems that in the prior art, the adjusting range of the opening degree of the connecting shaft bracket is determined by the thread length of a screw rod, the adjusting range is limited, the requirement of any opening degree cannot be met, the number of hinged joints of the connecting shaft bracket is large, the rotating part is prone to blocking when the opening degree of the connecting shaft is adjusted, and the stability of adjustment is affected in a non-connecting rod connection mode.

The embodiment of the utility model discloses a drum-shaped tooth connecting shaft bracket which comprises a bracket body, a universal connecting shaft, an upper connecting shaft sliding block, a lower connecting shaft sliding block, a fixed pulley, a plate-type chain and a pre-tightening shock absorption device, wherein the universal connecting shaft is arranged on the bracket body;

an upper connecting shaft sliding block and a lower connecting shaft sliding block are symmetrically arranged on two sides in the bracket body; trunnions at two sides of the end of the universal spindle are respectively arranged in the two upper spindle sliding blocks and the two lower spindle sliding blocks;

fixed pulleys are symmetrically arranged on the outer sides of two ends of the upper part of the bracket body, a plate type chain is arranged on the fixed pulleys, a circular groove transversely matched with the plate type chain is arranged on the periphery of each fixed pulley, and a groove longitudinally matched with the plate type chain is arranged in each circular groove;

one end of the plate-type chain is connected with one end of an upper connecting shaft sliding block in the bracket body, the other end of the plate-type chain is connected with the pre-tightening shock absorption device, and the pre-tightening shock absorption device is connected with a protrusion extending to the outer side of the lower connecting shaft sliding block.

In one possible implementation, the pre-tightening shock absorbing device comprises a spring, an adjusting screw and a spring seat;

the spring seat is internally provided with a spring, one end of the adjusting screw rod is connected with one end of the plate type chain, which is positioned at the outer part of the bracket body, the other end of the adjusting screw rod penetrates through the bulge of the lower connecting shaft sliding block, which extends to the outer side, and penetrates through the spring and the spring seat thereof, and one end of the adjusting screw rod, which is close to the bottom of the spring seat, is also provided with a locking nut.

In one possible implementation, the bottom of the spring seat is provided with a rubber buffer material.

In a possible implementation manner, the bottom of the spring seat is integrally provided with a concave shape, and the center of the spring is positioned at the vertex of the concave shape.

In a possible implementation manner, a gasket is arranged at the upper end of the spring, and the gasket is annular; the gasket is equipped with outer connecting portion and inner connecting portion, outer connecting portion with the upper end periphery of spring is connected, inner connecting portion with the upper end periphery of spring is connected.

In one possible implementation, the lock nut is of a double nut structure.

In a possible implementation mode, the upper connecting shaft sliding block and the two lower connecting shaft sliding blocks are respectively provided with a connecting hole, and trunnions on two sides of the end of the universal connecting shaft are respectively installed in the connecting holes and can rotate relative to the connecting holes.

One or more technical solutions provided in the embodiments of the present invention have at least the following technical effects or advantages:

the embodiment of the utility model adopts the structure that the upper connecting shaft sliding block and the lower connecting shaft sliding block are connected through the plate-type chain to flexibly transfer force, and the pre-tightening shock absorption device is additionally arranged at the lower connecting shaft sliding block, so that the phenomenon that the connecting shaft bounces due to external impact shock is avoided, and the defect that the opening degree variation range of the universal connecting shaft is limited is overcome; the periphery of the fixed pulley is provided with a circular groove transversely matched with the plate-type chain, the circular groove is internally provided with a groove longitudinally matched with the plate-type chain, and the stability and the safety of the connecting shaft bracket are improved in the up-and-down moving process of the plate-type chain.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments of the present invention or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic structural diagram of a drum-type gear coupling bracket according to an embodiment of the present disclosure;

FIG. 2 is a side view of FIG. 1 provided in accordance with an embodiment of the present application;

FIG. 3 is a cross-sectional view of a pulley provided in an embodiment of the present application;

FIG. 4 is a partial schematic structural view of a drum-type gear coupling bracket according to an embodiment of the present disclosure;

FIG. 5 is a schematic structural diagram of a gasket according to an embodiment of the present disclosure;

fig. 6 is a schematic structural view of a spindle bracket of a prior art link structure.

Icon: 1-universal shaft; 2-connecting a shaft sliding block; 3-fixed pulley; 4-plate chain; 5-adjusting the screw rod; 6-a spring; 7-lower connecting shaft sliding block; 8-a carrier body; 9-circular groove; 10-a trench; 11-spring seats; 111-concave shape; 12-a gasket; 121-an outer connecting part; 122-inner connection; 13-locking the nut.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the embodiments of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the embodiments of the present invention and simplifying the description, but do not indicate or imply that the referred devices or elements must have specific orientations, be configured in specific orientations, and operate, and thus, should not be construed as limiting the present invention. The terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Furthermore, the terms "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. Specific meanings of the above terms in the embodiments of the present invention can be understood by those of ordinary skill in the art according to specific situations.

As shown in fig. 1-3, an embodiment of the present invention provides a drum-shaped tooth spindle bracket, which includes a bracket body 8, a universal spindle 1, an upper spindle slider 2, a lower spindle slider 7, a fixed pulley 3, a plate-type chain 4, and a pre-tightening shock-absorbing device;

an upper connecting shaft sliding block 2 and a lower connecting shaft sliding block 7 are symmetrically arranged on two sides in the bracket body 8; trunnions at two sides of the shaft end of the universal spindle 1 are respectively arranged in the two upper spindle sliding blocks 2 and the two lower spindle sliding blocks 7;

the outer sides of two ends of the upper part of the bracket body 8 are symmetrically provided with fixed pulleys 3, the fixed pulleys 3 are provided with plate-type chains 4, the periphery of each fixed pulley 3 is provided with a circular groove 9 transversely matched with the plate-type chain 4, and the circular groove 9 is internally provided with a groove 10 longitudinally matched with the plate-type chain 4;

one end of the plate-type chain 4 is connected with one end of the upper connecting shaft sliding block 2 in the bracket body 8, the other end of the plate-type chain is connected with a pre-tightening shock absorption device, and the pre-tightening shock absorption device is connected with a bulge extending to the outer side of the lower connecting shaft sliding block 7.

In the prior art, because the change range of the opening degree of the connecting rod type connecting shaft bracket is limited, the adjusting range of the opening degree of the connecting rod adjusting connecting shaft bracket is determined by the thread length of the screw rod, the adjusting range is limited, the requirement of any opening degree cannot be met, and the lengths of the left screw rod and the right screw rod are required to be adjusted when the opening degree is adjusted every time, and the left screw rod and the right screw rod are required to be symmetrical left and right, so the adjusting difficulty is increased, and the operation is troublesome; the field operation amount is increased, and if the length of the screw cannot be adjusted in time and the screw cannot be assembled forcibly, the threaded part of the connecting rod is easily damaged, and the field production is influenced.

In the embodiment of the utility model, the integral structure is changed from a connecting rod type connecting shaft bracket into a connecting shaft bracket formed by a plate-type chain 4 and a fixed pulley 3, when the opening degree of the connecting shaft bracket is adjusted in the using process, an upper connecting shaft is lifted so as to lift an upper connecting shaft sliding block 2, a lower connecting shaft sliding block 7 falls down through self weight, when the preset position is reached, the upper connecting shaft is loosened so as to loosen the upper connecting shaft sliding block 2, and the upper connecting shaft and the lower connecting shaft are in new balance, so that the opening degree of the connecting shaft bracket is increased; on the contrary, the lower spindle connecting slide block 7 is lifted, so that the opening degree of the upper spindle connecting slide block 2 is reduced after falling and adjustment, the automatic adjustment is realized, the field operation amount is reduced, and the pretension shock absorption device is arranged, so that the spindle connecting device can prevent the spindle connecting from bouncing due to external impact shock, and the large adjusting range and high precision of the opening degree of the spindle connecting are ensured; and in order to strengthen the stability of the plate chain 4 moving on the fixed pulley 3, make the plate chain 4 have the advantage of the stability of the connecting rod spiale bracket in the course of moving, set up the circular groove 9 transversely assorted with the plate chain 4 on the fixed pulley 3 at this moment, be equipped with the slot 10 longitudinally assorted with the plate chain 4 in the circular groove 9, when the plate chain 4 moves, the plate chain 4 blocks in the slot 10 at the fore-and-aft middle part, the horizontal structure of plate chain 4 removes the both ends card of middle part in the circular groove 9 simultaneously, therefore the plate chain 4 is when walking on the fixed pulley 3, its stability improves greatly.

Optionally, the pre-tightening shock absorption device comprises a spring 6, an adjusting screw rod 5 and a spring seat 11; be equipped with spring 6 in the spring holder 11, adjusting screw 5's one end is connected the one end that slat chain 4 is located the outside of bracket body 8, and the other end passes the arch back that extends to the outside of spiale slider 7 down to pass spring 6 and spring holder 11 thereof, adjusting screw 5 still is equipped with lock nut 13 in the one end that is close to spring holder 11 bottom. When the initial installation, apply certain pretension to spring 6, make plate-type chain 4 be in and prestretch the state, can avoid influencing the adjustment precision of opening degree because of plate-type chain 4 is not hard up like this, can avoid again leading to the spiale spring because of external impact vibrations, when having guaranteed the accurate adjustment of spiale opening degree, improved the steady, the security of spiale bracket. The locking nut 13 and the adjusting screw 5 are matched, so that the length of the adjusting screw 5 can be changed, and the adjusting screw 5 can be fastened.

Optionally, the bottom of the spring seat 11 is provided with a rubber buffer material, and the rubber buffer material can play a good role in buffering.

Alternatively, as shown in fig. 4, the bottom of the spring seat 11 may be integrally provided with a concave shape 111, and the center of the spring 6 is located at the apex of the concave shape 111. The design of the concave shape 111 can ensure that the stability between the spring 6 and the spring base 11 is improved when the spring 6 is compressed, and the stability of the movement of the lower shaft sliding block 7 is not influenced.

Optionally, as shown in fig. 4 and 5, a gasket 12 is disposed at the upper end of the spring 6, and the gasket 12 is annular; the gasket 12 is provided with an outer connecting portion 121 and an inner connecting portion 122, the outer connecting portion 121 is connected to the upper periphery of the spring 6, and the inner connecting portion 122 is connected to the upper periphery of the spring 6. The outer connecting part 121 and the inner connecting part 122 are provided with hooks which are respectively connected with the periphery of the upper end of the spring 6 and the inner periphery of the upper end of the spring 6, and the gasket 12 can protect the spring 6 on one hand and prevent the upper end of the spring 6 from being compressed and worn or damaged when being used for a long time; in addition, the spring seat 11 is buckled on the inner sleeve by the outer sleeve, and the outer sleeve and the inner sleeve can move relatively, so that the design of the gasket 12 can also enhance the stability and reliability of the upper end of the spring 6 when being compressed, and prevent the upper end of the spring 6 from sideslipping.

Optionally, the locking nut 13 is of a double nut structure. The double-nut structure has long service life and large bearing load.

Optionally, the upper connecting shaft sliding block 2 and the two lower connecting shaft sliding blocks 7 are respectively provided with a connecting hole, and trunnions at two sides of the shaft end of the universal connecting shaft 1 are respectively installed in the connecting holes and can rotate relative to the connecting holes, so that the angle of the universal connecting shaft 1 can be adjusted.

The working principle of the embodiment of the utility model is as follows: when the chain type drum-shaped tooth connecting shaft bracket is initially installed, the positions of an upper connecting shaft sliding block 2 and a lower connecting shaft sliding block 7 are adjusted through the length of a screw thread screwed in by a plate-type chain 4 and an adjusting screw 5, the center line elevations of the upper connecting shaft sliding block 2 and the lower connecting shaft sliding block 7 are determined to meet the requirement of a rolling line, and the upper connecting shaft sliding block 2 and the lower connecting shaft sliding block 7 are respectively connected with an upper universal coupling and a lower universal connecting shaft 1; during initial installation, apply certain pretension to spring 6, make the chain be in and prestretch the state, can avoid again avoiding leading to the spiale spring because of external shock vibrations because of the not hard up adjustment accuracy that influences the opening degree like this, when having guaranteed the accurate adjustment of spiale opening degree, improved the steady, the security of spiale bracket. In the use process, when the opening degree of the spindle bracket is adjusted, the upper spindle sliding block 2 is lifted, the lower spindle sliding block 7 falls down through self weight, when the preset position is reached, the upper spindle sliding block 2 is loosened, and the upper spindle sliding block 2 and the lower spindle sliding block 7 are in new balance, so that the opening degree of the spindle bracket is increased; on the contrary, the lower spindle slide 7 is lifted, so that the upper spindle slide 2 falls to finish adjusting the opening degree to be smaller.

The embodiments in the present specification are described in a progressive manner, and the same or similar parts among the embodiments may be referred to each other, and each embodiment focuses on the differences from the other embodiments.

The above embodiments are only used to illustrate the technical solutions of the present application, and not to limit the present application; although the present application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications or substitutions do not depart from the spirit and scope of the present disclosure.

Claims (7)

1. A drum-shaped tooth connecting shaft bracket is characterized by comprising a bracket body (8), a universal connecting shaft (1), an upper connecting shaft sliding block (2), a lower connecting shaft sliding block (7), a fixed pulley (3), a plate-type chain (4) and a pre-tightening shock absorption device;

an upper connecting shaft sliding block (2) and a lower connecting shaft sliding block (7) are symmetrically arranged on two sides in the bracket body (8); trunnions at two sides of the shaft end of the universal spindle (1) are respectively arranged in the two upper spindle connecting sliding blocks (2) and the two lower spindle connecting sliding blocks (7);

fixed pulleys (3) are symmetrically installed on the outer sides of two ends of the upper portion of the bracket body (8), a plate-type chain (4) is arranged on each fixed pulley (3), circular grooves (9) transversely matched with the plate-type chain (4) are formed in the peripheries of the fixed pulleys (3), and grooves (10) longitudinally matched with the plate-type chain (4) are formed in the circular grooves (9);

one end of the plate-type chain (4) is connected with one end of an upper connecting shaft sliding block (2) in the bracket body (8), the other end of the plate-type chain is connected with a pre-tightening shock absorption device, and the pre-tightening shock absorption device is connected with a protrusion extending to the outer side of the lower connecting shaft sliding block (7).

2. A drum type tooth spindle carrier according to claim 1, characterized in that said pre-tensioned shock absorbing means comprises a spring (6), an adjusting screw (5) and a spring seat (11);

be equipped with spring (6) in spring holder (11), the one end of adjusting screw (5) is connected plate-type chain (4) are located bracket body (8) outside one end, the other end passes lower clutch slider (7) extend to the protruding back in the outside, and pass spring (6) and spring holder (11) thereof, adjusting screw (5) are being close to the one end of spring holder (11) bottom still is equipped with lock nut (13).

3. A drum type gear shaft bracket according to claim 2, characterized in that the bottom of the spring seat (11) is provided with a rubber cushioning material.

4. A drum type gear coupling bracket according to claim 2, characterized in that the bottom of the spring seat (11) is integrally provided as a concave shape (111), and the center of the spring (6) is located at the apex of the concave shape (111).

5. A drum-shaped gear shaft carrier according to claim 2, characterized in that the upper end of the spring (6) is provided with a washer (12), the washer (12) being ring-shaped;

the gasket (12) is provided with an outer connecting part (121) and an inner connecting part (122), the outer connecting part (121) is connected with the periphery of the upper end of the spring (6), and the inner connecting part (122) is connected with the periphery of the upper end of the spring (6).

6. A drum-type gear shaft bracket according to claim 2, characterized in that said lock nut (13) is of double nut construction.

7. The drum-type gear coupling bracket according to claim 1, wherein the upper coupling slide block (2) and the two lower coupling slide blocks (7) are respectively provided with a connecting hole therein, and trunnions at both sides of the shaft end of the universal coupling (1) are respectively installed in the connecting holes and can rotate relative to the connecting holes.

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